[gnus] Add G prefix to evil state

CHANGELOG.develop

@@ -1551,6 +1551,8 @@ Other:
 **** Gnus
 - Key bindings:
   - Added ~g r~ for =gnus-group-get-new-news= (thanks to Matthew Leach)
+  - Added ~G~ for the prefix =gnus-group-group-map= in evil state
+    (thanks to duianto)
 **** Go
 - Improved go test output buffer behavior (thanks to Denis Bernard)
 - Configurable extra arguments to go run (thanks to Enze Chi)

layers/+email/gnus/packages.el

@@ -77,7 +77,8 @@
       (add-to-list 'nnmail-extra-headers nnrss-url-field)
 
       (evilified-state-evilify gnus-group-mode gnus-group-mode-map
-        (kbd "g r") 'gnus-group-get-new-news)
+        (kbd "g r") 'gnus-group-get-new-news
+        (kbd "G") 'gnus-group-group-map)
       (evilified-state-evilify gnus-server-mode gnus-server-mode-map)
       (evilified-state-evilify gnus-browse-mode gnus-browse-mode-map)
       (evilified-state-evilify gnus-article-mode gnus-article-mode-map)